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STMicroelectronics STM32L152QDH6
- Part No.:
- STM32L152QDH6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 132-UFBGA
- Datasheet:
-
STM32L152QDH6.pdf
- Description:
- IC MCU 32BIT 384KB FLSH 132UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,529
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Product details
Overview
STM32L152QDH6 from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M3 microcontroller in LQFP144 package, featuring 384KB Flash with ECC, 48KB SRAM, 12KB true EEPROM, integrated LCD driver (8×40 segments), USB 2.0 interface, and dual 12-bit DACs - deployed in battery-powered medical sensors and portable industrial HMIs requiring sub-µA standby current and on-chip analog signal conditioning.
For engineers reviewing the STM32L152QDH6 datasheet, STM32L152QDH6 pinout, STM32L152QDH6 application, or STM32L152QDH6 equivalent, key selection criteria include verified 305 nA Standby mode current, 12-bit ADC with 1 Msps sampling across up to 40 channels, 3x operational amplifiers supporting rail-to-rail output, and full USB 2.0 compliance with internal 48 MHz PLL - all validated for operation from 1.65 V to 3.6 V across -40°C to +105°C.
Technical Context
The device implements dynamic voltage scaling (DVS) with three operating voltage ranges (1.65–1.8 V, 1.8–3.6 V, and 3.0–3.6 V) enabling adaptive power management per performance requirement. Its memory subsystem includes dual-bank Flash (192 KB each) supporting Read-While-Write (RWW) and ECC protection, plus 12 KB of true EEPROM with write endurance >300k cycles and data retention >20 years at 85°C.
Analog integration comprises a 12-bit ADC with programmable sampling time and hardware oversampling, two buffered 12-bit DACs with monotonicity guaranteed, three rail-to-rail op-amps configurable as PGA or transimpedance amplifier, and two ultra-low-power comparators with window detection and wake-up capability - all functional down to 1.8 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M3, 32-bit, up to 32 MHz - delivers 33.3 DMIPS peak performance with MPU for secure task isolation. |
| Flash Memory | 384 KB with ECC and RWW capability - enables firmware updates without halting real-time operations. |
| SRAM | 48 KB - sufficient for complex sensor fusion algorithms and USB descriptor buffers. |
| EEPROM | 12 KB true EEPROM with ECC - retains calibration data and configuration parameters across power cycles without external NV memory. |
| ADC | 12-bit, 1 Msps, up to 40 channels - supports simultaneous sampling of multiple analog sensors with hardware oversampling for enhanced resolution. |
| DAC | 2× 12-bit buffered outputs - provides precise analog stimulus generation for closed-loop control or sensor biasing. |
| Low-Power Modes | 305 nA Standby (3 wakeup pins), 0.475 µA Stop (16 wakeup lines) - extends coin-cell battery life to multi-year operation in always-on monitoring nodes. |
| USB Interface | Full-speed USB 2.0 with internal 48 MHz PLL - eliminates need for external crystal, reducing BOM count and PCB area. |
Pinout & Package
LQFP144 (20 × 20 mm, 0.5 mm pitch) package with 116 fast I/Os (102 5V-tolerant), all mappable to 16 external interrupt vectors. Pin functions include dedicated LCD segment/common drivers, USB DP/DM, VREF+, VREF-, VBAT, VDDA/VSSA for analog domain isolation, and SWDIO/SWCLK for debug.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Supports 1.65–3.6 V operation; separate VDDA/VSSA pins ensure analog reference stability. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | 116 total I/Os; 102 are 5V-tolerant - simplifies level-shifting in mixed-voltage systems. |
| PC13–PC15 | RTC oscillator inputs | Connect external 32.768 kHz crystal for calendar timekeeping with ±20 ppm accuracy after calibration. |
| PA11/PA12 | USB DP/DM | Full-speed USB 2.0 interface with integrated transceivers - no external PHY required. |
| PF0–PF15 | LCD segment/common outputs | Drive up to 8×40-segment LCD directly; include contrast adjustment and blinking control logic. |
| PA0, PA1, PB0, etc. | ADC/DAC/Op-Amp I/O | Direct analog peripheral routing - enables single-chip signal chain from sensor input to display output. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power standby | 305 nA with 3 wakeup pins - enables decade-scale battery life in maintenance-free IoT endpoints. |
| Integrated LCD controller | 8×40 segment drive with step-up converter - eliminates external LCD bias IC and reduces component count by ≥4. |
| True EEPROM | 12 KB with ECC and >300k write cycles - stores device-specific calibration without external serial EEPROM. |
| Capacitive touch sensing | Up to 34 channels with hardware-accelerated acquisition - supports robust touch HMI on metal-front panels without external controller. |
| CRC calculation unit | Hardware-accelerated CRC-32 - ensures integrity of firmware updates and stored configuration data in field-deployed units. |
| Memory protection unit (MPU) | Configurable region-based access control - enforces separation between RTOS tasks and prevents memory corruption in safety-critical applications. |
Applications
| Portable Medical Monitor | Smart Utility Meter |
|---|---|
Use Scenario: Wearable ECG patch continuously acquiring biopotential signals and displaying real-time waveform on segmented LCD. IC Role / Device Role / Timing Role: Central MCU managing analog front-end (op-amps, ADC), LCD refresh timing, USB data upload, and ultra-low-power sleep/wake scheduling. Use Value: On-chip 3x op-amps and 12-bit ADC eliminate discrete signal conditioning; 305 nA standby extends battery life beyond 12 months on CR2032. | Use Scenario: Battery-backed electricity meter logging consumption data and communicating via USB during service visits. IC Role / Device Role / Timing Role: System controller handling metrology ADC sampling, RTC timestamping, EEPROM-based tariff storage, and USB mass-storage emulation. Use Value: Integrated 12 KB EEPROM retains 10+ years of billing history; USB 2.0 enables field technician data extraction without proprietary readers. |
| Industrial HMI Panel | Wireless Sensor Node |
Use Scenario: Local operator interface on factory floor equipment with segmented LCD, tactile buttons, and analog sensor readouts. IC Role / Device Role / Timing Role: Real-time display controller with capacitive touch decoding, analog input scanning, and local alarm triggering. Use Value: 34-channel capacitive sensing supports multi-button overlay; LCD driver with contrast control maintains readability under varying ambient light. | Use Scenario: LoRaWAN node measuring temperature, humidity, and vibration in remote infrastructure with 10-year battery target. IC Role / Device Role / Timing Role: Low-power sensor aggregator performing ADC oversampling, data compression, and scheduled wake-up for RF transmission. Use Value: 0.475 µA Stop mode with 16 wakeup lines allows precise event-triggered sampling; 12-bit DAC calibrates external sensor bias points on-demand. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L432KCU6 | Arm Cortex-M4F core, 256 KB Flash, no LCD driver, no true EEPROM, higher active current (80 µA/MHz) | Requires external LCD driver and EEPROM; better suited for floating-point math but lacks integrated analog peripherals | Select when DSP-intensive algorithms outweigh analog integration needs |
| STM32L072CZT6 | Cortex-M0+, 192 KB Flash, 20 KB RAM, no LCD, no DAC, lower max clock (32 MHz), no USB | Smaller footprint (UFQFPN48), lower cost, but lacks USB, LCD, and dual DAC - suitable for simpler sensor nodes | Select for cost-sensitive, non-display, non-USB applications where 32-bit M3 features are unnecessary |
Compared with STM32L152QDH6, the STM32L432KCU6 trades analog integration and ultra-low standby for floating-point capability and higher code density, while the STM32L072CZT6 reduces feature set and package size to meet minimal BOM targets - making the QDH6 optimal for display-equipped, battery-constrained systems needing full analog signal chain support.
Availability
STM32L152QDH6 is available at Aetrix Electronics and suitable for portable medical monitors, smart utility meters, industrial HMI panels, and wireless sensor nodes requiring stable component supply across extended product lifecycles.
Supply support for STM32L152QDH6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM32L1 series targets ultra-low-power embedded applications demanding multi-year battery life, on-chip analog integration, and robust operation across extended temperature ranges - optimized for portable instrumentation and energy-harvesting systems.
FAQ
What is the maximum operating frequency and corresponding power consumption in Run mode?
The STM32L152QDH6 operates up to 32 MHz with 230 µA/MHz typical current consumption in Run mode when executing code from Flash. At 32 MHz, total active current is approximately 7.4 mA, verified per DS8576 Rev 13 Table 17. Dynamic voltage scaling allows reduction to 1.8 V supply at lower frequencies to further minimize power.
Does this MCU support hardware-accelerated cryptographic functions?
No, the STM32L152QDH6 does not include dedicated cryptographic accelerators (AES, SHA, PKA). It relies on software libraries for encryption; however, its memory protection unit (MPU) and 96-bit unique ID support basic secure boot and firmware authentication implementations.
Can the integrated LCD driver operate without external components?
Yes - the LCD controller supports internal step-up converter and contrast adjustment, enabling direct connection to 8×40-segment LCDs without external bias generators or charge pumps. External capacitor (typically 1 µF) is required only for the internal booster circuit per Section 3.10 of DS8576.
What is the qualification status for automotive applications?
The STM32L152QDH6 is qualified to Industrial grade (-40°C to +105°C) per DS8576, but is not AEC-Q100 qualified. It is not recommended for automotive powertrain or safety-critical ADAS systems; use STM32G4 or STM32H7 series for automotive-qualified alternatives.
STM32L152QDH6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 132-UFBGA
- Series:
- STM32L1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, Cap Sense, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O:
- 109
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 12K x 8
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 40x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L152QDH6 FAQ
1.How can I place an order for STM32L152QDH6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L152QDH6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32L152QDH6 reliable?
The price and inventory of STM32L152QDH6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L152QDH6 is usually 5 days.
3.What payment methods are accepted for STM32L152QDH6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L152QDH6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L152QDH6?
STM32L152QDH6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L152QDH6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32L152QDH6?
For technical support, including STM32L152QDH6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L152QDH6 requirements.
6.How does Aetrix verify that STM32L152QDH6 is sourced from the original manufacturer or authorized distributors?
All STM32L152QDH6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32L152QDH6 meets industry standards.
7.What is the process for return or replacement of STM32L152QDH6?
All STM32L152QDH6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L152QDH6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32L152QDH6 part is unused and in its original packaging.
Return procedure for STM32L152QDH6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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